Bacteriological studies on expectorated sputum specimens from respiratory infectious diseases

Susumu HARADA, Yoshifumi IMURA, Yasuko HARADA, Akira KAJIKI, Yoshinari KITAHARA, Masahiro TAKAMOTO, Tsuneo ISHIBASHI, Atsushi SHINODA
1992 Japanese Journal of National Medical Services  
Bacteriological studies of expectorated sputum specimens from 1924 cases of respiratory diseases were done to clarify the feasibility of the bacteriological culture of the causative organisms in the lower respiratory tract infections. The following results were obtained . 1) There were no significant bacteria in about 50% of the cases and oropharyngeal flora contaminants in 16.7% to 30.7% of the cases of the lower respiratory tract infections . 2) Bacteria that were cultured over one-third of
more » ... e surface of the plate seemed to be true bacterial flora in the lower respiratory tract, 3) The detection of S. pneumoniae and H. influenzae in pneumonia with chronic airway diseases and S. aureus, K. pneumoniae and P. aeruginosa in bronchitis with chronic airway diseases were significantly high. 4) By consecutive culture of expectorated sputum for 3 days on admission M.
doi:10.11261/iryo1946.46.75 fatcat:fas65bd6hnhqzivk3qna4t335e